| Hardenberg to Knurow | 544.23 mi (875.85 km) |
| Hardenberg to Kobylka | 613.26 mi (986.94 km) |
| Hardenberg to Kokoszki | 503.19 mi (809.80 km) |
| Hardenberg to Kolbuszowa | 670.89 mi (1,079.70 km) |
| Hardenberg to Kolno | 638.50 mi (1,027.56 km) |
| Hardenberg to Kolo | 506.82 mi (815.65 km) |
| Hardenberg to Kolobrzeg | 385.40 mi (620.24 km) |
| Hardenberg to Koluszki | 560.85 mi (902.61 km) |
| Hardenberg to Komorniki | 425.08 mi (684.10 km) |
| Hardenberg to Konin | 491.28 mi (790.64 km) |
| Hardenberg to Konskie | 595.13 mi (957.77 km) |
| Hardenberg to Konstancin-Jeziorna | 612.19 mi (985.22 km) |
| Hardenberg to Konstantynow Lodzki | 541.26 mi (871.07 km) |
| Hardenberg to Koronowo | 473.53 mi (762.07 km) |
| Hardenberg to Koscian | 424.66 mi (683.42 km) |
